PC Wireless Key Lock owns

After reading about this product and the open source program that makes it actually work I knew I had to have one :)

It works great!

It's simply a usb plugin that comes with a small (...) device that sends out a heartbeat every few seconds. The adapter picks up on this and the open source program then handles that information.

This means that whenever I leave my computer at work it automatically locks and turns down the volume. (Great news for my co-workers :). When I return it turns up the volume again (but doesn't automatically login of course).

The best part about the program is that it's extensible through plugins. So if I'd want something else to happen when I leave/return; I could simply write my own plugin and have it run :)